if your guinea pig has a tumor it may lose hair and its behaviour may change eg eating habits etc if you suspect a tumor you should properly take it to the vets incase.
the guinea pig may also have a lump. some tumors are cancer and i would recommend that you take it to the vets even if you suspect a tumor.
A tumor on a hamster can appear as a visible lump or swelling on the body. The tumor may vary in size and shape, and it can be either firm or soft to the touch. A vet should examine any abnormal growth on a hamster to determine if it is a tumor and assess appropriate treatment options.
Take it to the hospital if i were you. If you did that than hope he/she lives. Sorry bout your hamster
it wqill have a lump on its butt
I would not attemp to remove the tumor myself (one of my hamsters had a tumor) but to take it to a vet to have it surgically removed if they think necessary.
you should ask your local vet about that...
if you had a tumor on your neck would you seek medical care?! of course you should!
hamster tumors are just the same as a humans. When you start to feel small or large bumps on a hamster you will know that its a sign and you should immediately take your hamster to the vet, and they will see what they can do, or if your hamster is in pain, they can put your hamster to sleep humanely.
tumor
I'm sorry to say that my hamster had an enlarged stomach and smelt lot, also he had diarrhoea, it turned out that he had a large tumor in his stomach. You could tell he wasn't eating just hiding food because he was so thin on top.
I'm terribly sorry to tell you this, but it might be a tumor. :( bettas live 1-2 years, so it might be getting older which causes it to get a tumor. it may not be a tumor, and not all tumors are cancer. good luck all the best, Fishlover
It may be the male hamsters testies or if it is female it may be a tumor.
See a rodent vet as soon as possible. http://www.rmca.org/Vets/ has a list of good rodent vets. The mulp can be a tumor or an abcess or something else, but only a vet can tell you what exactly and how to treat it.